IS 3499-2 (B): metal chairs for office purposes Specification, Part 2: Revolving and tilting (BI-LINGUAL)

****************

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Whereas the Parliament of India has set out to provide a practical regime of right to
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and whereas the attached publication of the Bureau of Indian Standards is of particular interest
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education and knowledge, the attached public safety standard is made available to promote the
timely dissemination of this information in an accurate manner to the public.

Mazdoor Kisan Shakti Sangathan
"The Right to Information, The Right to Live''

IS 3499-2 (B) (1985) : metal chairs for office purposes
Specification, Part 2: Revolving and tilting (BI-LINGUAL)
[CED 35: Furniture]

Jawaharlal Nehru
'Step Out From the Old to the New"

aj^&vi iJii^s:y%K^ isb^^ni^seg

:<>5&i| mT'5K^5?::5:^>^i»l

K^^^iXSVCd^

Satyanarayan Gangaram Pitroda
Invent a New India Using Knowledge

Bhartrhari — Nitisatakam
''Knowledge is such a treasure which cannot be stolen"

^'^^^r

k

BLANK PAGE

^*-^^^

PROTECTED BY COPYRIGHT

IS3499(inii2):1985
- ( 7!if^/Reaffirmed 1990 >

( fk«TrA )
•s ____ ( Reaffirmed 2005 )

>TT»r2 gv% 3ftT f[»i^ «rmt

( ?^TT J^Rt^T )

Indian Standard

SPECIFICATION FOR
METAL CHAIRS FOR OFFICE PURPOSES

PART 2 REVOLVING AND TILTING

( Second Revision )

5[3^/UDC 684-434-044 : 651-2

©mm 53TTt 1992

*nf W ^^, 9 «5!f T tn^ flTBT uw
Tf f«?^ 110002

© BIS 1992

BUREAU OF INDIAN STANDARDS

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002

^Jjune 1992 ^5'T ^/Price Group 2

IS 3499 ( »nn2 ) : 1985

^x^^ »Tn«P

( IJHTT 3^Tt«jriT )

Indian Standard

SPECIFICATION FOR
METAL CHAIRS FOR OFFICE PURPOSES

PART 2 REVOLVING AND TILTING

( Second Revision )

5nw«T^

0.1 W m^^l'ET TTR^ ( HR 2 ) ( ^^KT T^TTt^'H- )

% ^K fir^t^ 25 sr^T^Tt 1985 ^> ^FTd^q* 'tt^^ ^^«tt

STTT ^^^ f^^T ^T \

0.2 ^% ^fTR^^T m^^ ^t5r«T^ 1966 ^ ^T^Tf^^ |3fT

«TT 3^^ ^T^ ^ 1976 ^ '5B"^r ^?tt1^^ f^^rn^T 1

0.3 zif^ ^^^ ^> % f^ 'TTH'f^ ^ ^ ftr^l" 3r^^T
fqtrq' ^T ^T^^ f^^T ^^T I m ^^, eft q-ft^^

¥T ^ ^> WT" TTT?T STRI 5>, ^^ IS 2 : I960* % STJ^r^

q;w!^ ^ ^5^ f^^TT sriq I tht! %cr ^i^ff ^ ^t^^ ^^tt^

FOREWORD

0.1 This Indian Standard ( Part 2 ) ( Second
Revision ) was adopted by the Indian Standards
Institution on 25 January 1985, after the draft
finalized by the Furniture Sectional Committee
had been approved by the Civil Engineering
Division Council.

0.2 This standard was first published in 1966
and subsequently revised in 1976. The present
revision incorporates the changes considered
necessary to bring the standard up to date.
Besides incorporating an amendment, the grades
of the various materials have been specified and
provision for padded arm-rests has also been
made.

0.3 For the purpose of deciding whether a parti-
cular requirement of this standard is complied
with, the final value, observed or calculated,
expressing the result of a test, shall be rounded
off in accordance with IS 2 : 1960*. The number
of significant places retained in the rounded off
value should be the same as that of the specified
value in this standard.

1.1 ^H m^^ ( m^ 2 ) ^ ^m?^?T % f^ir ^^^ ^x
^^% ^T^ ^T5 ^ f r^^flf ^ m^^, srRfJT; Ptttt^

1 SCOPE

1,1 This standard ( Part 2 ) covers the require-
ments of materials, dimensions, construction
and finish of revolving and tilting metal chairs
for office purposes.

*?f€iTTc^fT^ ^\^\ % ^^^ ^-^^it ^^^^ ( "r^^f^ ) \

*Rules for rounding off numsricai values ( revised ).

IS 3499 ( mn 2 ) : 1985

2 ^TT'nft

2.1 ^^^f^ft^^ ¥V ?if^^t IS 1285 : 1975* % T^-
^}^ 62400, 63400 ST^q^T 65032 % SI^^^T |t I

2.2 5H^?^^

^^, sn^ si'tT iq*Te ^f^^i ?^^^^ % f^^ 'R^:
IS 1278 : 19721, IS 814 ( ^m 1 ) : 1974$ sftT
IS 4972: 1968§ % 3?^^^ |> i

2.3 iR^'nf^^

IS 348: 196811 % 3^5^^ |> I

2.4 HtH TTfH5T

IS 8542 : 1977K % ST^^^ 5> I

2.5 i^; f^qi^ '5i?T

IS 513 : 1973** ST'Rm IS 1079 : 1973tt %t^ %

2.6 f^^m 'TftTOt

IS 7138 : 1973$t % 3T5^T ^> I

2.7 qf^

V[^ IS 1365: 1978§§%3r5^^ ^ I

2.8 ^^t

^^^X % f^tr H^^cT ^^.?t IS 399 : 1963|||i ^

2 MATERIALS

2.1 Aluminium Tubes

Aluminium tubes shall conform to IS Designatioa
62400, 63400 or 65032 of IS 1285 : 1975*.

2.2 Electrodes

Electrodes for gas, arc and spot welding shall
conform to IS 1278 : 1972t, IS 814 ( Part 1 ):.
1974t and IS 4972 : 1968§ respectively.

2.3 French Polish

French polish shall conform to IS 348 : 1968||.

2.4 Wax Polish

Wax polish shall conform to IS 8542 : 19771[.

2.5 Mild Steel Sheets

Mild steel sheets shall conform to grade of
IS 513 : 1973** or grade of IS 1079 : 1973tt.

2.6 Steel Tubes

Steel tubes shall conform to IS 7138 : 1973tt

2.7 Screws

Screws shall conform to IS 1365 : 1978§§.

2.8 Wood

The wood suitable for furniture as specified in
IS 399: 1963II1I shall be used.

^rrfl % f^iT ) ( 5;HTr ^?Ttt^^ ) i

tn^ ti^^ % f^q cTTT 3rtT ^X^ S5ff ^ T^M^^ ( \^XJ

^ f^fijif^s : ^m 1 "^^^xi % sifcrfT^cr #fc^^ ^v^j^ % fk^
( ^)^j ^^ftefT^ ) I

§s;frTTt?JV ^TO tf?«T %^^^\^ ^ T^M^z i
W^"^ qrf^^ ^ f^f?Tf^^ ( q^^r \^ft^^ ) i

**aTrr^rr tf?^^ ^m^r ^TTrt =^?Tf ^t f^f^rf^e ( ^^TT
^HxV^^ ) I

tfrT'^rT tf^^^ ^T^^ %xm^ "^^^x 9!\x qxft ^T" f^f^rf^s-
( ^^x\ ^^xt^or ) I

JJq5HT=^ ^T^ff % f^tr l^TTcT ¥t HTf^ifr ¥V f^f?[f^3 I

^^ft^^ ) I

•specification for wrought aluminium and aluminium^
alloy, extruded round tube and hollow sections ( for
general engineering purposes ) ( second revision ).

tSpecification for filler rods and wires for gas weld-
ing ( second revision ).

JSpecification for covered electrodes for metal arc
welding of structural steel : Part 1 For welding products
other than sheets ( fourth revision ).

§Specification for resistance spot-welding electrodes.

llSpecification for French polish (first revision ).

^Specification for polish for wooden furniture, paste.

♦♦Specification for cold rolled carbon steel sheets
( second revision ).

ttSpeeification for hot rolled carbon steel sheet and
strip ( third revision ).

ttSpeeification for sieel tubes for furniture purposes.

§§Specification for slotted countersunk head screws
( third revision ).

iillClassification of commercial timbers and their
zonal distribution ( revised ).

IS 3499 ( irrn 2 ) : 1935

3 srmm

3 DIMENSIONS

3.1 ^^ % ^^^ ^^ 3.1.1 ^ ^^T 3.1.4 cT^ ^ 3.1 The dimensions of the chair shall bs as given
r 7^ ^ ^ , in 3.1.1 to 3.1.4.

3.1.1 Hte ^ffy^^f

"^^ % f ^T ^^ ^\Z ^ ^^it 400 ^ 500 f^Tft % T^

3.1.2 ^Z ^ ^^\i

^^^"t r^^^^ ^'Uji 450 f^TTft ^> 1

3.1.3 ^Z ^ ^T^cTftr^ n^TTf

^'t? ^T" ^zj^cTTf ^r^clf^^ n^TTf 400 fiTTft 5> I 2T^

3.1.4 %^ % ^^^cfiT HTT^ STRTTT f^^^rf^fecT |:

srm-l^H: ^f^cT ^R^ '^'TfTl

785 ftr^ft
535 f^Tft

4 gf^ms:

4.0 f^^^

^rg ^'> ff^^t ^> ^^ 4.1 ^ %^T 4.8 ^^ ^ f^^

4.1 armiT

^f^^T^FR ^T^q STu ^^li ^nt I trr^q ^t imjn ^

^^ ?fr^jff ?i' f^^^t fr^r^ ^'> TTtzii 2*0 ftr^l- ^ ^q-
H- ^> sr^^^T ^^qicT =^^^T*f % f^PT^t TfrH:Tf i-o fTTTft

% T^m% if HT^^ ^T ^5f 20 f^'^ % ^H ^ 5> 1

4.2 uTtr

^T"^R ^> Tfr^rrf 1-20 PthI"^ ^^ ^|f ^> 3{?t^t
^^^rfTTf^T^T^ ^ ;Tf^irf f^^^T- ^T*^R ^'t ^\^Ti
2*0 f^M^ ^ ^TT ?r |>; % ^^RT ^TtT I ^rr^qf srrft
^T? ^ JTT err tt^ arsr^r srif^R ^"f 1 ^y^ frr^^r^R

qi^q ^T ^T^Tt oZ\w 2-5 ft^> ^ ^:^ ^ |> 31>T ^nf-

3.1.1 Height of Seat

The height of the seat of chair from the floor
surface shall be adjustable within the range of
400 to 500 mm.

3.1.2 Width of Seat

Minimum width of the seat shall be 450 mm
measured at a point midway along the effective
depth of seat.

3.1.3 Effective Depth of Seat

Minimum effective depth of seat shall be 400 mm.
This shall be measured from a vertical line
through the centre of the front edge of the seat
to a vertical line through the centre of the back
of the seat.

3.1.4 Minimum overall dimensions of chairs
shall be as follows:

Overall height 785 mm

Overall width including 535 mm

arm rests

4 FABRICATION

4.0 Components

Metal chairs shall be assembled from the
components as given in 4.1 to 4.8

4.1 Base

The base shall have minimum four legs made
from steel tubular pipes of wall thickness not
less than 1*60 mm or from aluminium tubes with
a wall thickness not less than 2*0 mm or from
mild steel sheets not less than I'O mm thick. The
tubular pipe shall be either round or square in
section. The outside diameter of the round
tubular pipe shall be not less than 25 mm and in
the case of the square section the side of the
square shall be not less than 20 mm.

4.2 Frame

The frame for chair shall be made from steel
tubular pipes of wall thickness not less than
r20 mm or from aluminium tubes with a wall
thickness not less than 2*0 mm. The tubes shall
be either round or square in cross-section. The
outside diameter of the round tubular pipes
shall be not less than 25 mm and in the case of
square section the side of the square shall bs not
less than 20 mm.

IS3499(^m2):1985
4.3 ar?7% ^X ^^% ^T% T-er

^x ^ ^z ^T 150 f^m ^T ^IT H| ^^^ ^T^l 5t I

4.3 Revohing and Tilting Screw

The chair shall have a fitting with a vertical axle
for swivelling and a horizontal axle for tilting.
The lateral movement is controlled by an adjust-
able spring or springs and their compression
can be varied by a knob. This fitting shall be
capable of supporting a load of 150 kg placed
in the seat without any wobbling when the seat
is rotated or tilted.

4-4 ^^ 4.4 Seat

€iz ^ ^.%i\ ^^^i ^Ti^ m^} ^^ #*^ ^ f^r ^rir jhe seat shall be padded or caned ( see

( ^^ IS 5378 : 1969* ) I 18 5378:1969*).

4.5 qVsTH^T 4.5 Back-Rest

^5T^?T, ^^it ^ 250 ft^ft^ ^H ^ ^> cT^T ^e# W^ The back-rest shall not be less than 250 mm irt

4.6 «Pf2T ^^^

^^-^ZT \rs^,c^ Z\^i qT ^^mi ^T^ I ^^ZX % ^fff ^

^ ^.^ s^^T 50 f^^'^ ^ ^T^^ ^ it I

4.7 ^f^i^'lf %fHT

4.6 Castor Unit

Castor unit shall be mounted on legs. Castor
units shall have wheels or balls between the
forks of the castor so as to allow easy rotation
under load. The wheel or ball shall be hard and
wear-resistant and shall not be less than 20 mm
and not more than 50 mm in diameter.

4.7 Ends of Tubes

The open ends of tubes shall be provided with
caps made from metal, plastic or rubber.

4.8 arm-Tf^

SfTi^4^^ ^,^\^X % feq ^^^^^ ^^.€\ ^"t is 399 :
1963t ^ 3^5^^ l\ ^ ^^TJ^T ^TtT 1 STTTf-^^E ^ r\^i\

ft •^^^'[^ W>\^ ^1% ^^ 3TRTT f^T^ ^% 3ftT ^^

^ ^If fk^y ^rr 1

5 ^^tm^

5.1 f ^T % '^^'t f|^^ ^f^^^r^ ^.J^^ bAt q^^ ^^^ %

5.2 n^, 3^T^ sft^ ^^^^ ^fe^^ ^"r q^^ ISl323:
19661, IS 816 : 1969§; sft^ IS 819 : 1957|| % bt^^T

It!

( q?TTVf^^ ) I

<tfrf HT^m ( ^Jrv^f^cf ) I

4,8 Arm-Rests

Arm-rests shall be made from wood suitable for
furniture conforming to IS 399 : 1963t. The
arm-rest may also be padded. These shall be so
shaped as to ensure comfort to the users, and
shall be fixed securely with screws from the
under-side of the tubular arms.

5 ASSEMBLY

5.1 The components shall be assembled
means of welding, bolting or screwing.

by

5.2 The method of gas, arc and spot welding
shall conform to IS 1323 : 1966J, IS 816 : 1969§
and IS 819 : 19571! respectively.

♦Specification for polyethylene cane.

tCIassification of commercial timbers and their zonal
distribution ( revised).

*Code of practice for oxy-acetylene welding for
structural work in mild steel ( revised ).

tCode of practice for metal arc welding for general
construction in mild steel (firs( revision ).

JCodeof practice for resistance spot welding for
light assemblies in mild steel.

IS 3499 ( wn 2 ) : 1985

5.3 ^c^^r^%^ % ^mlf ^ %f^^^ IS 2812 : 1964* 5.3 Welding of aluminium parts shall be in
% STf^R ^ ^r^ I accordance with IS 2812 : 1964*.

6 f^f?T5T

6.1 ^T5 ^ f^^^

6.1.1 ftff % f^P»T'?T f^wlf ^ H^l- ttH, ^=^1, ^sr
f^?rT^ l^rr fkrr rs^y^ \ ^^ % ^^jfr f^^^f ^t sr^Tr-smTi

^^^ ^ #^, 3f^, ^q-ff^rf 5T^^r ^r^fV q'^Tq' ^% %

f^tr ^r| ^>qT viTTtT I

6.1.2 3T^^ ^q^^T*^ % 5T^^ ^T^ f ^T % ^^^ l^qTcf %

T^^^l ^x ^J^^z ^q^, IS 3618 : 1966t % ^'f ^t %
srj^q f^m ^iq i qji? ^2: %q^ ^i sr^^ is 6005 :
1970 J % STpTT |t I

arr^^^^clT ^> ^p ?ttt| ^Tt^ aftr ^^ IS HO : 1968§ %
3r5^q ^> sft^ ^^fTif?T^iT ^JV^X IS 5660 : 1970l| %
3T5^q ^ 1

6.1,3 ^^% ^K ^^T'l^ ^^ ^t^^ % ^q* 3ftT ^ql ^>
ffT^^^f^fe^ ^q" ^ H^rmr ^iq i

^) ?#q^ % m^ fq^Pr^ %q- IS 151 : 19501f,
IS 2932 : 1974** s^T IS 2933 : 1975tt %

rfXq^T^ q^ ^^T ^fTtr | f^f^lfF P^^^ sft^

6 FINISH

6.1 Metal Components

6.1.1 All dents, burrs and sharp edges shall be
removed from the various components. The
components shall be individually pickled,
scrubbed and rinsed to remove grease, rust, scale
or any other foreign element.

6.1.2 Immediately after pickling, all the mild
steel parts shall be given phosphating treatment
conforming to Class C of IS 3618 : 1966t. The
process for application of phosphate coating
shall be in accordance with IS 6005 : 1970t.

NOTE — Putty shall be applied to all the surfaces
requiring filling and shall conform to IS 110 :
1968§. Aluminium primer shall conform to
IS 5660 : 1970il.

6.1.3 Coat/coats of enamel paint shall then be
applied as follows:

a) Finish coat with
IS 151 : 195011,
IS 2933 : 1975tt.

enamels conforming to
IS 2932 : 1974** or

b) In case of stoving enamel the components
shall thereafter be baked at a specifiied
temperature in an oven heated uniformly.
The finish shall be smooth and uniform
with hard tough film of enamel strongly
adhering to the surface. The finish shall
be free from all visible defects and shall
not chip when tapped lightly with a dull
pointed instrument.

*^^f^f^ziT 3t1[7: ^^^TfTTf^JTTT fH^reri^ ^ %^ z^^z^

M^^ i^ •^t'r^T; \^ ^ ^miT stt^ stt^, ^p: T^mx ^ f^M^z
^^ ^ ^TTt^ ^T^ ^r#, f^fw %^ % T^^> ^€tf^, ^ MmUz i

♦Recommendations for manual tungsten inertgas arc-
welding of aluminium and aluminium alloys.

tSpecification for phosphate treatment of iron and
steel for protection against corrosion.

JCode of practice for phosphating of iron steel.

§Sp2cification for ready mixed paint, brushing, grey
filler, for enamels, for use over primers {first revision ).

jjSpecification for ready mixed paint, brushing,
aluminium red oxide primer.

fSpecification for ready mixed paint, spraying,
finishing, stoving, enamel, for general purposes, colour
as required.

♦♦Specification for enamel, synthetic, exterior

(a) undercoating, (b) finishing {first revision ).

ttSpecification for enamel exterior (a) undercoating,

(b) finishing (first revision ).

IS 3499 i^m2) : 1985

6.2 ^?^ %^1 ^ 3TT^?^^cTT f"t rfr ^^^ftf^T^TT ^

6.3 ?r^ft ¥t ^sriq

^*T qifir^ ^ qiF^irr f^^iT ^t^ ^^^j ^^3^ ^^ *tt^^^
^ ^ot ^r% ^Ttf sft?: qrf^w ^ ^j^, 3t«t^t ^^ =^?rf

7 ftf)f?T5r wft ^[?T5prfT?rT ar^^iq

7.1 ^Tf^ 5P<J>7BT ^xi^'^

150 X 50 T^^) 3ftT ^>^Tf 0-315 ftr'Tt ^r # ^x

f^T ^TO qT IS 101 : 1964* ^^ 15.1 # ST^^TT ^Tf=^

6.2 Aluminium parts may be anodized, if
required by the purchaser.

6.3 Wooden Arms

The wooden arms shall be polished either with
wax polish or a transparent glossy French polish,
or stained dark and polished or lacquered as
desired by the purchaser.

7 PERFORMANCE REQUIREMENTS OF
FINISH

7.1 Scratch Hardness Test

A sample of mild steel plate 150 X 50 mm in
size and thickness 0'3l5 mm and finished as
described in 6 shall be subjected to scratch
hardness test in accordance with 15.1 of
IS 101 : 1964*. A scratch, showing the bare
metal, shall not be produced in the test sample.

7.2 ?TSf q?t^^

%Xij^ ^^z # ^q-R f^tr TTtT ^^Ji ^> 0-315 T^^t wti

f^T IS 101 : 1964* ^ ^^ 15.2 ^ si^mT ^^ ^T
^^ ^ft^^ f^^T ^TfT I 3r^ q'TtSTT ^ ^R HX\^^

H^^ sr^n f^iT ^TT^ eft ^^^ ^r^ ^ ^^| f^^rf ?t ^ i

7.3 n^^^^ "^x ^m^^ ^^^^

^^ ^^qicT ^cfi ^r q^ h^^tt, f^^^r m^^

150 X 50 fnift 5> sftT ^"t?]f 0-315 fiTHt ^>; ^iTK

^ ^TT^ sflT f^T ^^ ^T 101 : 1964* ^^ 16 $ 5^w^
^^JT^r 3Tm^^ qfi^^ f^^r ^v^ \ q*ft^^ |^iY tt

TT fr^^ ^l* 10 ^T^T m^i^ ^X ^f^ ^ ^J^ eft ^TcT

Tf i

7.4 Tn x\n^ ^^f ^ ^T q^*^^^

•^^ ^^TTrT ^.?t ^r q^ ^^?fT 150 X 50 f^^t m%^
sfTT 5:ft^Tf 0-135 fr'^- ^ #^n %JrT ^TIT sft^ ^^

f^T OT RT iS 101 1964* ^^ 17 ^ 3T^^R ^tt

7.2 Pressure Test

Samples prepared from mild steel plates of
thickness 0*315 mm and finished as described
in 6 shall be subjected to pressure test in
accordance with 15.2 of IS 101 : 1964*. The
metal surface shall not be rendered visible when
the test pieces are separated after the test.

7.3 Flexibility and Adhesion Test

A sample of mild steel plate 150 X 50 mm in
size and thickness 0315 mm and finished as
described in 6 shall be subjected to flexibility and
adiiesion test in accordance with 16 of
iS 101 : 1964*. The paint film on the test piece
shall not show damage, detachment or cracking
when examined under x 10 magnification.

7.4 Stripping Test

A sample of mild steel plate 150 X 50 mm in
size and thickness 0*315 mm and finished as
described in 6 shall be subjected to stripping
test in accordance with 17 of IS 10^ : 1964.* The
scratch produced after the test shall be free from
jagged edges.

^^fejft ( \^x\ ^^-^^^ ) \

♦Methods of test for ready mixed paints and enamels
( second revision ).

IS 3499 ( mn 2 ) : 1985

7.5 ^^^^ ^ f^«?fcT ^ ar^ancf ^^wn ^ 5^r^ %

%^^m^i T^^ 150 X 50 T^^\ m^^ sftT ^vreit
1*25 ft^rl" f^^TT ^TtT sftT :j^ q^ ^¥ 6 ^ ^f^^fear %
sr^T^TT ftBftr^ ^ ^JTT I fqjT: ^^ hx Is lOl : 1964*

8 qf^n

8.1 f^f ^ H^lr f^^^^f ^t ^^ crfr^ ^ ^^ f^^T ^iq

^ 5> I

9.1 ^^T ^lix ^ ^rq" qf^ ^^^ ^"t f^'^^rf^fe'cf
^) 3iqf«Tcr ^s: ^t st^r;

t) ^^^T tT^^ =^r^^ I 5TT ?T|lf, zrf^ ^T|^ I, eft

f^^sr^R ^t;
^) rqjf?T?r ^T Tn;

q^fcfJTT ^t if I ^|t ^^^T STT^T Jf ^q^2: ^q

7.5 Test for Protection Against Corrosion Under
Conditions of Condensation

A mild steel panel of size 150 x 100 mm and
thickness 1*25 mm and finished as described in
6 shall be subjected to test for protection against
corrosion under conditions of condensation in
accordance with 18 of IS 101 : 1964*. The metal
surface shall show no signs of corrosion after
the test.

8 PACKING

8.1 All the component parts shall be packed in
such a way that no damage is caused to them
during transit.

9 INFORMATION TO BE SUPPLIED BY
THE PURCHASER

9.1 The purchaser shall supply the following
information to the supplier along with the order:

a) Type of seat required;

b) Type of back required;

c) Whether castor unit required and what
type;

d) Colour of finish; and

e) Where alternative methods of construction
and finish are specified, these shall be
clearly stated in the order.

10 ^;TT 3T^5T

10 MARKING

10.1 ^^T ?T15 ^fft'^ll* q"^ pTTTfcTT^^q^'^T^ %%TT 10.1 All metal chairs shall be marked with a
^^^^^ MJ^'i ^^m ^l^ \ suitable mark identifying the manufacturer.

10.2 ^15 ^ f f^^lf q^ TTR^ 5^T ^ ^TTf ^T ^^€\

^M^^^ 1986 % snqsTRf ^^x ^^% srsfi"^ ^^ T^^wi sft?:

fqf^^TTff % ^%^]X ^trTT t I fwt HRrftq- ^J^^ % ^i^^^ST^

^^J^ q^ ^ ^^"^ ^T ^qi ft^rr i^ ^Trr ^t sn^qr^H | f^
^j^ ^^ % q^T% ^ ^rq^ ^ ^ ?Tf 3T^«TT3ff ^T "TT^rq
fwT qqr | sft^ ^^qr^q % ^xj^ ^^^j f^x!t^m, qft^^r
^'\x 5^qr-F?T2T^^ ^^ s^f^Tftqq s(^\^ % stj^tt |3rT |;

f^W^r fq^^^ 3T^^ qq^^tir eft ^R^^q qrq^ o7^ gTTTT

ftqr I TT^ fspqr^qq ^cqrq^ stt^t i ^ q^r^ t q^rq
^ q^ 3rtT qrq q| ^ I fsfi r^?r ^^rqf qT qf qrq^ qf t
offer ^^ srrq^ |, ^Rq^q m^^ s^ft ^jq^^r^ ¥t ^qrcTTT
srrq-qf qr^ ^-^ q^ ttt^tt ^^cqr T^qr | f^ q^ ^sr^rrq
H^qs ^r^^ % 3T5^q 1 3T?rqT q|f 1 fqqfqr^ff qqr ^^^^f
^ f^R 5rqf % sr^ qm^ q^^ ^nrr^r % f^q ^n §?r f^qr
^mr t, ^H^T fqq'^'ir m^qtq qjq^ s^Tt & fq^ q^rqr 1 1

10.2 The metal chairs may also be marked with
Standard Mark.

NOTE — The use of the Standard Mark is governed
by the provisions of the Bureau of Indian Standards
Act, 1986 and the Rules and Regulations made there-
under. The Standard Mark on products covered by
an Indian Standard conveys the assurance that they
have been produced to comply with the requirements
of that standard under a well defined s>stem of
inspection, testing and quality control which is devised
and supervised by BIS and operated by the producer.
Standard marked products are also continuously
checked by BIS for conformity to that standard as a
further safeguard. Details of conditions under which
a licence for the use of the Standard Mark maybe
granted to manufacturers or producers may be ob-
tained from the Bureau of Indian Standards,

In case of dispute English verson of this standard shall be considered authentic.

IS 10 (THT 2) : 1976 "^f^^ 'ETIT q-feift spt f^ftlfEJ: «TTT 2 ':5nf^^ (=^'\«rT "TT-d^TiT) 4

{H5ft«rJT ?f'?in 3) ?iTf5r q-5

IS 10 (mT 3) : 1974 '^i%^ =5rT3T-^feirf ^'V T^ftife: ^T^r 3 ?^ (=^'t«TT "T?r<t5Tir) ^f^fr^fq- 3

IS 3763 : 1983 «rTg ^t 5f T3; f r«iif 5pt f^fsife (^i^tt <T^<t«Tir) ?rR3r ^-5 2

IS 8758 : 1978 3T?mf ^T=^?TT3ff S^T T^T^f ^ T^^ ^ stfT ^ ^<S(\ % t^^fcfTT?ft ^TrIt 2

IS 11679 : 1985 ^mfHT ^f sfzftT % f^^ ^rspft ^t Jr^it ^ f^ftrfe ^TfSf ^-5 2

IS 12269 : 1987 53 ^^, m^V^ ^i^'? ^\^ T^ f^ftrf^J ?rT?^ q-4 6

( 1 SW^ilT 1987 % ^TT^ )

1 BT^cRT 1987 ^ ^Ti; ?rTT?ft2T ^T^^ spt ^5itr«T5r iT5fr ?T^t f^T^ftrfe^T ^mx t:

1 " 10

2 15

3 20

4 25

5 30

6 35

7 40

8 45

9 50

10 60

11 65

12 70

13 iO

14 90

15 100

'TTT^JT ITH^ s^fr tr^ f ?rTf?r^ ^^^ I, f^^^^ ?^T?TT mTcft'^T ^R^ S^rft StT^OtW; 1986 % ST^^'T^ ^ Jf

f^ffT ^?T 5r^T^ % T^ -Rt 3r9r ^ f^^T" ^ 'ct Jf ^^: 5Rg^ ?rff %2tt ^ ^^^ i %f^?T ^^^ ^t?^, zj^^
fe ^?r% ^^ ^PT^ ^ 3^*^^ ^^^x^ 1 3r«r^T wf ^^^-^q |^ 1%^ ^iffr srtcTjt ^^t^^r ^Pr^ ^x f^ ^tr 1 1

^^«r^ ^o

^f<t ^r^ ^"V ctttV^

5rmfq-cr ^Tsq- ^mr^

^iTcft«T *TTT«P i^Tt

nr^^ ^^^, 9 ^fT^T ^T? ^snST TR, fTf f^^-1 10002
i^^^: 3310131, 331 13 75

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q;^f : 1/14 ^l.snt.^V ^^l^r vil trrr, wt.3TT|.^'V. tH ^tf^r^cT^^
^^^TlT 700054

^T : tx^^tafr 445-446, ^^e^r 35-^1*, ^^>r? 160036

^feni' : ^m^ ^ft^TT, T^^ 60eN43

^fr^ : mn^J^m, i 9 tTTTsrrf ^>, ^f[^, sft^t ( q^ )
^^^i 400093

^T^rq : ar^T^T^TK, #wr^, ^ftqr^r, ^^^^^t, ^^t^t^, |^tt^^, ^^%x,
^mT, q^^, ftr%'^, ^T^^^R, TTf^^'^^, ^"t^^TTT, H^^^ra

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85 62

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235 04 42
235 15 19
235 02 16

f"^32 92 95
' 632 8 =^8
1632 78 91
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Hrf'sl VJX9 S^, f^?Wlf STTT ifss